Meritshot Tutorials
SQL Tutorial
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SQL SyntaxSQL Syntax
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SQL ORDER BY ClauseSQL ORDER BY Clause
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Introduction to SQLIntroduction to SQL
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SQL SELECT DISTINCTSQL SELECT DISTINCT
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SQL Logical OperatorsSQL Logical Operators
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SQL WHERE ClauseSQL WHERE Clause
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SQL SELECT StatementSQL SELECT Statement
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SQL DELETE StatementSQL DELETE Statement
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SQL INSERT INTOSQL INSERT INTO
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SQL Null ValuesSQL Null Values
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SQL Update StatementSQL Update Statement
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SQL Select TopSQL Select Top
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SQL Aggregate FunctionsSQL Aggregate Functions
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SQL LIKE and WildcardsSQL LIKE and Wildcards
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SQL IN and SQL BETWEENSQL IN and SQL BETWEEN
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SQL JOINSSQL JOINS
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SQL Group BySQL Group By
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SQL HavingSQL Having
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SQL EXISTSSQL EXISTS
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SQL SELECT INTOSQL SELECT INTO
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SQL INSERT INTO SELECTSQL INSERT INTO SELECT
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SQL CASE STATEMENTSQL CASE STATEMENT
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SQL NULL FunctionsSQL NULL Functions
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SQL Stored ProceduresSQL Stored Procedures
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SQL User-Defined FunctionsSQL User-Defined Functions
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SQL CommentsSQL Comments
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SQL OperatorsSQL Operators
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SQL Database Creation and ManagementSQL Database Creation and Management
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SQL CREATE DATABASE StatementSQL CREATE DATABASE Statement
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SQL CREATE TABLE StatementSQL CREATE TABLE Statement
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SQL DROP DATABASE StatementSQL DROP DATABASE Statement
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SQL DROP TABLE StatementSQL DROP TABLE Statement
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SQL ALTER TABLE StatementSQL ALTER TABLE Statement
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SQL NOT NULL ConstraintSQL NOT NULL Constraint
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SQL UNIQUE ConstraintSQL UNIQUE Constraint
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SQL PRIMARY KEY ConstraintSQL PRIMARY KEY Constraint
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SQL FOREIGN KEY ConstraintSQL FOREIGN KEY Constraint
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SQL CHECK ConstraintSQL CHECK Constraint
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SQL DEFAULT ConstraintSQL DEFAULT Constraint
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SQL IndexesSQL Indexes
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SQL Date FunctionsSQL Date Functions
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SQL ViewsSQL Views
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SQL InjectionSQL Injection
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SQL Data Types OverviewSQL Data Types Overview
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SQL AUTO_INCREMENTSQL AUTO_INCREMENT
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SQL Keywords ReferenceSQL Keywords Reference
SQL CREATE DATABASE Statement
The CREATE DATABASE statement in SQL is used to create a new database. This is the first step in organizing your data storage, and it allows you to define a unique space where all related data can be stored, accessed, and managed.
Syntax
CREATE DATABASE database_name;
- database_name: The name you want to assign to your new database.
Example:
Example 1: Creating a Database for a School Management System
Let’s say you want to create a database to manage data for a school in Hyderabad.
CREATE DATABASE SchoolHyderabad;
This command creates a database named SchoolHyderabad, which can then be used to store data related to the school’s operations, such as student information, teachers, and classes.
Example 2: Creating a Database for a Retail Store
Suppose you are setting up a database for a retail store in Mumbai.
CREATE DATABASE MumbaiRetailStore;
This command creates a MumbaiRetailStore database, which could store inventory data, sales transactions, and customer details.
Example 3: Creating a Database for a Hospital
Imagine you’re tasked with creating a database for a hospital named “Aarogya” in Bengaluru.
CREATE DATABASE AarogyaHospitalBengaluru;
This command creates a AarogyaHospitalBengaluru database, where all medical records, patient details, and staff information can be stored.
Example 4: Creating a Database for a College
Consider creating a database for a college named “Saraswati College” in Delhi.
CREATE DATABASE SaraswatiCollegeDelhi;
This command creates a SaraswatiCollegeDelhi database, which can manage data related to students, faculty, courses, and examinations.
Tips to Remember
- Choose Meaningful Names: The database name should be descriptive enough to understand its purpose. Avoid using spaces or special characters.
- Ensure Uniqueness: Make sure the database name is unique within the server to avoid conflicts.
- Plan Ahead: Before creating a database, plan the structure and tables you will need to support your application.
Frequently Asked Questions
Q1: Can I create multiple databases with the same name on the same server?
A1: No, each database name must be unique within the same SQL server instance.
Q2: What happens if I try to create a database that already exists?
A2: SQL will return an error stating that the database already exists. To avoid this, you can use the IF NOT EXISTS clause in some SQL systems.
Q3: How can I check if a database has been created successfully?
A3: You can list all databases using the SHOW DATABASES; command (in MySQL) or use a similar command depending on your SQL system.
Q4: Can I specify additional settings when creating a database?
A4: Yes, some SQL systems allow you to specify additional options like character sets, collation, and storage options when creating a database.
Q5: What should I do if I make a mistake in the database name?
A5: If the database has no tables or data, you can drop it and create a new one with the correct name. Otherwise, renaming might be an option depending on your SQL system.
